<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="/test/login" method="post">
    用户名：<input type="text" name="username"><br>
    密 码：<input type="text" name="password"><br>
    <input type="text" name="captcha"> <img src="captcha.jpg" height="50px" width="150px" style="margin-left: 20px;margin-top: 10px"><br>
    <input type="submit" value="登录">
</form>
</body>
</html>